[Schatzki's ring].
D003680:Deglutition Disorders / Q000209:etiology*; D004940:Esophageal Stenosis / Q000150:complications / Q000209:etiology*; D004947:Esophagus / Q000002:abnormalities*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged
L'anneau de Schatzki.